so lets do some opinions
Chromaggus, could be pretty useful, but I can see it being a problem with filling your hand too much
Solemn Vigil, could be good if you can kill off minions, potentially good combo with Equality/Conc
Dragon Consort, could be pretty useful making big dragons easier to play
Emperor Thaurissan, bad stat line, but great effect as you will always get value out of it, I can see it being often used by Handlocks possibly
Fireguard, could see this comboing well with a Doomhammer
Majordomo, could be a neat card, I'd prob try it out in a randuin deck since while his effect isn't random, Ragnaros effect is random target
Druid of the Flame, could be interesting, i guess
Volcanic Lumberer, could have some potential for working with cards like poison seeds
Quick Shot, I can see this being a commonly used card as 3 damage for 2 mana with potential for draw if you emptied your hand
Twilight Whelp could be really good as it can be a 2/3 for 1 with no negative
Resurrect, could be a fun card for Randuin decks
Gang Up, I can see this being pretty fun for rogues
Demonwrath, essentially a 1 point weaker hellfire that synergizes with demons
Revenge, a better whirlwind, only really worth playing if you have the <12 health though imo